Dispersions and emulsions
    1.
    发明授权
    Dispersions and emulsions 失效
    分散体和乳液

    公开(公告)号:US5236624A

    公开(公告)日:1993-08-17

    申请号:US547534

    申请日:1990-06-29

    CPC classification number: C08J3/03 C08J2395/00 Y10S516/928

    Abstract: Dispersions of hydrophobic substance e.s. resin emulsions, usually having a relatively low average particle size can be continuously and speedily prepared by feed a hydrophobic substance in the liquid state into at least two static mixers, arranged in a series. The resin is introduced at a temperature above 50 degrees C. but below its degradation temperature of hydrophobic substance and water under pressure is introduced into the first mixer. The mixture of resin and water is passed to another mixer maintained at a temperature lower than that prevailing in the first mixer and below the boiling point of water. Optionally aqueous solution of surfactant under pressure instead of water is introduced into the first mixer and optionally aqueous surfactant is introduced into the second mixer.

    Abstract translation: 疏水物质的分散体e.s. 通常具有相对低的平均粒度的树脂乳液可以通过将液态的疏水性物质进料至至少两个串联的静态混合器中而连续且快速地制备。 树脂在高于50℃的温度下引入,但低于其在疏水物质的降解温度和压力下的水被引入到第一混合器中。 将树脂和水的混合物通入保持在低于第一混合器中并低于水沸点的温度的另一混合器。 任选将表面活性剂在压力下代替水的水溶液引入第一混合器中,并且任选地将水性表面活性剂引入第二混合器中。

    Pressure-sensitive adhesives for marking films
    4.
    发明授权
    Pressure-sensitive adhesives for marking films 有权
    用于标记膜的压敏粘合剂

    公开(公告)号:US06569949B1

    公开(公告)日:2003-05-27

    申请号:US09586122

    申请日:2000-06-02

    CPC classification number: C09J133/08 C09J2201/606

    Abstract: Inherently tacky, pressure-sensitive adhesive compositions useful in marking film applications are provided. The compositions comprise polymer particles prepared by emulsion polymerization of at least one monomer mixture. The monomer mixture comprises at least one alkyl acrylate, the alkyl group of which has from about 4 to 12 carbon atoms, preferably in an amount of from about 73% to 90% by weight, at least one unsaturated carboxylic acid containing from about 3 to 5 carbon atoms, preferably in an amount of from about 2% to 12% by weight, and at least one hard monomer, preferably present in an amount of from about 5% to 15% by weight. The particles have a mean diameter of about 300 nm or less, as determined by laser light scattering. Preferably the hard monomer comprises a styrenic monomer, more preferably both a styrenic monomer and an alkyl methacrylate. In some embodiments, the compositions are prepared by sequential polymerization of the first and second monomer charges. The compositions may also contain one or more internal or external crosslinkers.

    Abstract translation: 本发明提供了用于标记膜应用的压敏粘合剂组合物。 组合物包含通过至少一种单体混合物的乳液聚合制备的聚合物颗粒。 单体混合物包含至少一种丙烯酸烷基酯,其烷基具有约4至12个碳原子,优选约73%至90%重量的至少一种不饱和羧酸,其含有约3至 5个碳原子,优选约2重量%至12重量%的量,和至少一种硬单体,优选以约5重量%至15重量%的量存在。 如通过激光散射确定的,颗粒具有约300nm或更小的平均直径。 优选地,硬单体包括苯乙烯单体,更优选苯乙烯单体和甲基丙烯酸烷基酯。 在一些实施方案中,通过第一和第二单体电荷的顺序聚合制备组合物。 组合物还可以含有一种或多种内部或外部交联剂。

    Pressure-sensitive adhesives for marking films

    公开(公告)号:US6147165A

    公开(公告)日:2000-11-14

    申请号:US37589

    申请日:1998-03-09

    CPC classification number: C09J133/08 C09J2201/606

    Abstract: Inherently tacky, pressure-sensitive adhesive compositions useful in marking film applications are provided. The compositions comprise polymer particles prepared by emulsion polymerization of at least one monomer mixture. The monomer mixture comprises at least one alkyl acrylate, the alkyl group of which has from about 4 to 12 carbon atoms, preferably in an amount of from about 73% to 90% by weight, at least one unsaturated carboxylic acid containing from about 3 to 5 carbon atoms, preferably in an amount of from about 2% to 12% by weight, and at least one hard monomer, preferably present in an amount of from about 5% to 15% by weight. The particles have a mean diameter of about 300 nm or less, as determined by laser light scattering. Preferably the hard monomer comprises a styrenic monomer, more preferably both a styrenic monomer and an alkyl methacrylate. In some embodiments, the compositions are prepared by sequential polymerization of the first and second monomer charges. The compositions may also contain one or more internal or external crosslinkers.

Patent Agency Ranking